GB1198031A - An Improved Apparatus for Ascertaining the Position of a Core within a Body - Google Patents

An Improved Apparatus for Ascertaining the Position of a Core within a Body

Info

Publication number
GB1198031A
GB1198031A GB36117/68A GB3611768A GB1198031A GB 1198031 A GB1198031 A GB 1198031A GB 36117/68 A GB36117/68 A GB 36117/68A GB 3611768 A GB3611768 A GB 3611768A GB 1198031 A GB1198031 A GB 1198031A
Authority
GB
United Kingdom
Prior art keywords
cable
probe
output
generator
eccentricity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB36117/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Davo & Co KG GmbH
Original Assignee
Davo & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Davo & Co KG GmbH filed Critical Davo & Co KG GmbH
Publication of GB1198031A publication Critical patent/GB1198031A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0036—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B7/31—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B7/312—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G01R31/59—Testing of lines, cables or conductors while the cable continuously passes the testing apparatus, e.g. during manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92076—Position, e.g. linear or angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92238—Electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92314—Particular value claimed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92447—Moulded article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Abstract

1,198,031. Measuring eccentricity of cable cores. DAVO G.m.b.H. & CO. K.G. July 29, 1968 [July 29, 1967], No.36117/68. Heading G1N. Apparatus for measuring the eccentricity of a cable core comprises an inductive probe 1 which is driven round the periphery of the cable and an alternating current generator 81 which is driven synchronously with the probe 1 to provide reference signals for two phase sensitive rectifier circuits which derive from the output of the probe signals representing the position of the core in two co-ordinate directions. As shown in Figs. 1 and 2, the cable 97 is guided by rollers 98 past a test head 114 which is rotated about the cable by a motor 80 which also drives the A.C. generator 81. The power supply for and the output signal from the rotating measuring head 114 is coupled through transformer 14, 21 to the stationary parts of the apparatus, further coupling transformers 15, 12 being provided in the head 114 to allow radial adjustment of the probe. The pick-up coil 2 of the probe 1 is connected in the frequency determining circuit of a transistor oscillator 4, the output of which is connected via a third harmonic generator 10 and amplifying and matching stages to an oscillating circuit 31, 32, automatically tuned by a slow acting feedback circuit so that the steepest part of its resonance curve corresponds to the third harmonic of the frequency of oscillator 4. The signal induced in coil 33 is rectified and smoothed and fed via a calibrating potentiometer 48 and amplifying stages to two phase sensitive rectifier circuits including transistors 70-73 which are switched on in turn for half a revolution of the brobe at 90 degrees intervals to produce at terminals 78, 79 signals representing the X and Y co-ordinates of the eccentricity of the core which may be used for controlling apparatus manufacturing the cable. A full wave rectifier bridge 63 and smoothing circuit produces an output indicative of the magnitude of the eccentricity for recording. The generator 81 may have two output coils arranged to produce signals in quadrature for energizing relays 92, 86 for switching the transistors 70-73, or, as shown, the generator 81 may have a single output and a 90 degrees phase shift circuit 82, 83 may be provided. The apparatus may be used for testing the bores of plastic tubes by inserting a resilient stopper, impregnated with metal or metal oxides, into the bore.
GB36117/68A 1967-07-29 1968-07-29 An Improved Apparatus for Ascertaining the Position of a Core within a Body Expired GB1198031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1623152 1967-07-29

Publications (1)

Publication Number Publication Date
GB1198031A true GB1198031A (en) 1970-07-08

Family

ID=5682722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36117/68A Expired GB1198031A (en) 1967-07-29 1968-07-29 An Improved Apparatus for Ascertaining the Position of a Core within a Body

Country Status (3)

Country Link
CH (1) CH494393A (en)
FR (1) FR1582215A (en)
GB (1) GB1198031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053827A (en) * 1976-04-30 1977-10-11 Northern Telecom Limited Apparatus for measuring, and indicating, the thickness of a non-metallic coating on an arcuate metal surface

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739190A1 (en) * 1987-11-19 1989-06-01 Foerster Inst Dr Friedrich ROTOR HEAD TO SCAN THE SURFACE OF CYLINDRICAL TEST PARTS
DE3804388C1 (en) * 1988-02-12 1989-01-12 Inoex Gmbh Innovationen Und Ausruestungen Fuer Die Extrusionstechnik, 4970 Bad Oeynhausen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053827A (en) * 1976-04-30 1977-10-11 Northern Telecom Limited Apparatus for measuring, and indicating, the thickness of a non-metallic coating on an arcuate metal surface

Also Published As

Publication number Publication date
FR1582215A (en) 1969-09-26
CH494393A (en) 1970-07-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees